Texas Attorney General Ken Paxton (R) gave a sad warning in the wake of the gun massacre at a Texas church Sunday morning.

"This is going to happen again," the attorney general predicted.

Devin Kelley, 26, walked into the 11:30 service at First Baptist Church in Sutherland Springs, Texas and started firing, killing at least 25 people including children and injuring over a dozen more.

Paxton added that churches, places of business and schools should have policies addressing the possibility of a shooter so they can protect their communities.

"I wish some law would fix all of this," he said.

"All I can say is in Texas at least we have the opportunity to have conceal carry," he explained. "And so ... there's always the opportunity that gunman will be taken out before he has the opportunity to kill very many people."

"You can't necessarily keep guns out of the hands of people who are going to violate the law," Paxton said. "If someone is willing to kill someone, they're also going to be willing to violate a gun law."

"It breaks my heart," the state's top cop said of the news that children are among the dead. The attorney general has four children of his own.

"It's obviously horrific that anybody was shot, innocent people, but there's just something about children dying that devastates all of us."

Former U.S. attorney and Fox News contributor Andy McCarthy said it’s “ridiculous” that some Democrats are complaining about Attorney General William Barr’s review of the origins of the Russia investigation.